Question

We offer help only when necessary (make it negative)

Answer 1

It is a "Present indefinite tense" that it uses first form of verb i.e. help. Hence it's negative sentence will be using "Present indefinite tense" helping verbs that will convert it into a perfect negative sentence. So negative sentence will be

"We do not help only when necessary"

Term "do not" is the helping verb of "Present indefinite tense" has convert you sentence into negative.

Hope my answer will be completely satisfied. if it is mark it as brainliest.

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